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A rocket engine with two TPs delivers the fuel, namely UDMH, at a pump discharge pressure of 555 psia, a flow of 10.2 lb/sec, at 3860 rpm, and a fuel temperature of 68? F. Determine the following:
(a) The fuel pump power for these nominal conditions.
(b) When the fuel flow is reduced to 70% of nominal, what will be the approximate power level, discharge pressure, and shaft speed? Assume that the oxidizer pump is also reduced by 70% and so is the gas flow to the turbines, but the gas temperature is unchanged.
(c) If the allowed temperature variation of the propellants is at -40? F and on another day +120? F, how will this affect the power level, shaft speed, and the discharge pressure of the fuel pump?
Consider the same silicon-aluminum metal-semiconductor junction. The cross-sectional area of the junction 1s 10 µm2. Assume that Be is 30 A K -2 cm-2 and the ideahty factor n is 1. Calculate the reverse saturation current and plot..
Safety considerations require that the maximum steady-state temperature of the system remain below 475°C. Will a spherical container with inner and outer diameters of 1.0 m and 1.2 m, respectively, satisfy this requirement?
1 mol of liquid hexane at 10 bar, 25 °C, is mixed adiabatically and under constant pressure with hexane vapor at 180 °C. Determine the moles of the vapor that must be mixed with the liquid in order to produce a final state that consists of a vapor..
It should be noted that none of those who dismiss MM are experts in the field. They may work in chemistry, biotechnology, or other nanoscale sciences or technologies, but are not sufficiently familiar with MM theory to critique it meaningfully.
Write down the differential equation you would need to solve to find the money metric utility function. If you can, solve this differential equation.
Develop a mass balance for a continuous diafiltration step and indicate the volumetric flow rates and concentrations of different species in the different streams obtained.
Design a reactor system to produce 40 metric tons per year of riboflavin using the strain given in the patent.
How many years of useful life should be estimated for the reactor if 12 percent of the total annual expenses for the plant are due to the cost for reactor depreciation? The straight-line method for determining depreciation should be used.
The overall reaction in a commercial heat pack can be represented as: 4Fe(s)+ 3O2(g) yields 2Fe2O3(s); delta H=1652 kJ
A concern borrows $50,000 at an annual, effective, compound-interest rate of 10 percent. The concern wishes to pay off the debt in 5 years by making equal payments at the end of each year. How much will each payment have to be?
the equilibrium conversion is negligible at 300 K, but becomes appreciable at temperatures above 500 K.
Aim To understand the fundamentals of chemical bonding and ionic equilibrium and its application in engineering problems.
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